Model: WS - BLUE 7 STAGE RO WATER PURIFIER Purification Capacity: 100GPD MADE IN VIETNAM SPECIFICATION: 1st Stage: PP 5 micron filter 2nd Stage: GAC carbon filter 3rd Stage: CTO carbon filter 4th Stage: 100GPD RO membrane 5th: Alkalien Filter 6th: Maifan Mineral 7th: Post carbon filter WELLSYS RO PUMP 100 GPD Storage tank: 4.5 gallon Blue and Clear Housing